LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
08-29-11
08-19-13
CODES:
N
S
C
*
MEMBER
SYSTEM
Western
Area Power
Administrat
ion (WAPA)
Tri-State
Generation
and
Transmission
Association,
Inc. (TSGT)
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
N
TOT 1A (Path 30) Limit Calculation Update Project
N
08-29-11
By e-mail this date, Western Area Power
Administration (WAPA) initiated the Expedited Rating
Process for the TOT 1A (Path 30) Limit Calculation
Update Project.
This project is initiated to update
the TOT 1A limit calculation methodology and no changes
to the current E-W transfer capability of 650 MW are
being sought. In addition, a request for interest in
participation in a Project Review Group was made.
S
6-12-13 By email this date the comprehensive progress
report was distributed for review. Interest in
participation in the PRG is due June 26, 2013.
N
1-7-14 By email this date Path 30 is granted phase 3
status. The transfer capability remains 650 MW.
N
Keota Interconnection TOT 3 Definition Change
N
8-16-13 By email this date Tri-State Generation and
Transmission Association, Inc. (TSGT) desires to
expedite the Rating Process for re-defining a WECC Path
36
element.
TSGT
is
undertaking
a
project
to
sectionalize the Laramie River Station (LRS)- Story 345
kV line for a radial load serving connection, at a
point approximately 60-65 miles north of Story along
the line. This line is an element of WECC Path 36, also
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
12/2013
December 2015
Revised 3/1/2012
Page 1
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
known as TOT 3. The definition of TOT 3 for this line
will need to be updated, with no change to the metered
locations. The attached report details the change
needed to the path definition and an analysis showing
no negative impacts to the existing and future ratings
of TOT 3. The projected in-service date is December
2015. The comprehensive progress report was distributed
with the aforementioned email.
S
03-07-12
NV Energy
(NVE)
N
N
*S
CODES:
N
S
C
*
11-12-13 By email this date a letter from the PCC
chair,
in
accordance
with
the
WECC
Project
Coordination and Path Rating Processes, Path 36 was
hereby granted an Accepted Rating, the effective date
to coincide with the completion of the Keota Project.
There is no change to the existing accepted rating of
Path 36 which remains 1680 MW North to South
(Maximum).
Southern Nevada Transmission Interface Project (Path 81
Redefinition)
03-07-12 By e-mail this date; NV Energy initiated the
Expedited Rating Process for the redefinition of Path
81. The new non-simultaneous rating for the path will
be 3948 MW South-to-North (NVE import) and 4458 MW
North-to-South (NVE export) as measured at the SNTI
line BA boundaries. A Comprehensive Progress Report was
also distributed on March 7, 2012. This email also
announced the formation of a Project Review Group and
requested interested parties to respond by April 6,
2012
4/2013
11-4-13 By email this date the PCC Chair distributed a
letter granting SNTI an Accepted Rating of 4533 MW N-S
and 3970 MW S-N.
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
Revised 3/1/2012
Page 2
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
11-20-12
NWMT
CODE
N
N
02-27-08
04-25-08
Idaho Power
Company (IPC)
BC
Transmission
Corp. (BCTC)
N
N
S
C
*
Path 18 Upgrade Project
11-20-12 By e-mail this date, NWMT submitted a
Comprehensive Progress Report to increase the rating
for Path 18 to 383 MW (North to South. NWMT requested
the rating process be expedited.
Hemingway to Boardman Transmission Project
2018
02-27-08 By e-mail this date Idaho Power Company
requested entry into Phase I of the Project Rating
Review Process for the Hemingway to Boardman
Transmission Project. The proposed project is a single
circuit 500 kV transmission line starting at a proposed
substation located southwest of Boise named Hemingway
and ending at Boardman Substation. The line is
approximately 230 miles long and will be rated at 1000
MW bi-directional.
S
11-28-12 By e-mail this date the PCC Chair distributed
a letter indicating that the Hemingway-Boardman 500 kV
Project has achieved Phase III status and a planned
rating of 2250 MW west to east and 3400 MW east to west.
N
2013
01-30-13 By e-mail this date, the PCC Chair issued a
letter indicating that the Path 18 Upgrade has achieved
Phase III status and an accepted rating of 383 MW N-S
as described in the report.
N
N
CODES:
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
Path 3 (Northwest-BC) S-N Rating Increase
04-25-08 By e-mail this date BC Transmission Corp (BCTC)
and ColumbiaGrid requested entry into Phase I of the
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
Revised 3/1/2012
Page 3
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
Project Rating Review Process for the Path 3 (NorthwestBC) South-North rating increase project. The project
consists of an increase of the conductor to ground
clearance on the BC side of the path. Necessary
upgrades to the U.S. side of the path will be identified
during Phase I studies. The south to north rating on
Path 3 is expected to increase from the current 2000 MW
up to 3000 MW.
N
02-14-07
02-03-12
CODES:
N
S
C
*
TriState
G&T, Inc.
(TSGT)
Arizona
Public
N
12-13-12 By email this date Scott Waples, PCC Chair
distributed a letter stating that the Path 3 S-N is
hereby granted Phase 3 status with an Accepted Rating of
3000 MW.
TOT3 Archer Interconnection Project (previously
known as TOT3 300 MW Upgrade Project)
N
02-27-07 By e-mail this date Basin Electric Power
Cooperative (BEPC) distributed a Comprehensive Progress
Report requesting the initiation of the Project Rating
Review Process for the TOT3 300 MW Upgrade Project.
The project is expected to be completed in two stages,
with the first stage resulting in a 200 MW rating
increase and the second stage in a 100 MW rating
increase on TOT3. A request was also made for interest
in participation in a Project Review Group.
N
11-16-12 By email the PCC Chair provided a letter
granting Phase III status with an Accepted Rating of
1843 MW north to south.
N
Four Corners 525/345 kV Transformer Upgrade Project
(Path 23)
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
2013
2/2012
Revised 3/1/2012
Page 4
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
Service
Company
(APS)
06-07-11
CODES:
N
S
C
*
Pacific Gas
& Electric
Co. (PG&E)
N
02-1-12 By e-mail this date; Arizona Public Service
Company initiated the Expedited Rating Process for the
Path 23 Upgrade Project. The 840 MVA transformer is
being replaced with a new 1025 MVA transformer. Most of
the 345 kV leads are also being replaced. A
Comprehensive Progress Report was also distributed on
February 6, 2012.
N
04-18-12 By e-mail this date the PCC Chair distributed
notification that the Path 23 Upgrade Project is
granted Phase III status with an Accepted Rating of
1000 MW.
N
Path 26 S-N Re-definition Project
N
06-07-11 By e-mail this date, PG&E initiated the
Expedited Rating Process for the Path 26 S-N Re-defin
ition Project. The existing Path 26 includes the
Midway-Vincent #1, #2, and #3 500 kV lines metered at
Midway. Southern California Edison plans to build a
new Whirlwind Substation that will be looped into the
existing Midway-Vincent #3 500 kV line for integrating
renewable generation in the Tehachapi area. This will
result in a change to the Path 26 definition as
follows: Midway-Vincent #1 and #2 and Midway-Whirlwind
#3 500 kV lines, all metered at Midway. The proposed
path redefinition will not change the existing S-N
rating of 3000 MW. A CPR was posted for 60-day review
and a request was made for interest in participation on
a PRG.
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
2011
Revised 3/1/2012
Page 5
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
06-18-08
02-27-08
CODES:
N
S
C
*
MEMBER
SYSTEM
Northwester
n Energy
(NWE)
Idaho Power
Company
(IPC)
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
N
09-27-11 By e-mail this date the PCC Chair distributed
notification that the Path 26 Redefinition Project is
granted Phase III status with an Accepted Rating of
3000 MW S-N.
N
Mountain States 500 kV Transmission
Project
S
06-18-08 By e-mail this date the TSS Chair
distributed a letter indicating that the MSTI Project
sponsored by NWE has achieved Phase II status. The
comments submitted by PPL Energy Plus on 5/27/08 will
be addressed during the Phase II study process.
N
09-27-11
By e-mail this date the PCC Chair
distributed notification that the MSTI Project is
granted Phase III status with Accepted Ratings of 1100
MW S-N and 1500 MW N-S.
N
Gateway West – Borah West, Midpoint West & Bridger 2400
MW Upgrade Projects
N
02-06-09
By e-mail this date the TSS chair
distributed a letter indicating that the Gateway West
Transmission Project has achieved Phase II status for
planned rating increases of the following paths; TOT
4A, Bridger West, and Borah West to 3435 MW, 5200 MW,
and 5557 MW, respectively, and two new paths created
with this project; West of Aeolus (2050 MW) and
Midpoint West (5487 MW).
N
07-21-11
By e-mail this date the PCC Chair
distributed a letter granting Phase III status to the
Gateway West – Borah West, Midpoint West, and Bridger
2400 MW Upgrade Projects with the following Accepted
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
Intertie (MSTI)
2013
2012
Revised 3/1/2012
Page 6
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
Ratings:
Borah West (4450 MW E-W), Midpoint West
(4400 MW E-W) and Bridger West (2400 MW E-W).
01-11-08
CODES:
N
S
C
*
PacifiCorp
(PACE)
N
03-05-12
By e-mail this date Orlando A Ciniglio
distributed a letter indicating that the Bridger West
portion of this project has completed Phase III with
the following Accepted Rating: Bridger West (2400 MW
E-W).
N
Gateway South TOT 2B/2C Project
N
01-11-08 By e-mail this date National Grid requested
entry into Phase I of the Project Rating Review
Process for a two-segment project called the Gateway
South Project.
The first segment of this project
consists of a 330 mile single-circuit 500 kV AC
transmission line from Mona substation in Utah to
Crystal substation near Las Vegas, NV. This line is
planned to have a bidirectional rating of up to 1500
MW. The second segment of this project is a 400 mile
double-circuit 500 kV AC transmission line from a new
substation, Aeolus, in southeastern Wyoming to Mona
substation in Utah.
This line will be capable of
delivering up to 3000 MW of resources to growing
markets in Utah and the DSW.
National Grid also
solicited interest in forming a joint Phase I Rating
Study Team by 02/10/08.
N
06-21-11
By e-mail this date the PCC Chair
distributed a letter granting Phase III status and an
Accepted Rating to the Gateway South - TOT 2B/2C
Project. It was recognized that issues brought up by
LDWP are still outstanding but as these issues are
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
2011-16
Revised 3/1/2012
Page 7
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
operational in nature, they are to be addressed by
LDWP and PacifiCorp during Phase III of this project.
N
03-06-12 By e-mail this date Craig Quist distributed
a letter stating that all facilities associated with
this project are in-service. The accepted path rating
are in the table below:
2011
07-12-07
CODES:
N
S
C
*
Southwest
ern Power
Group II,
LLC
(SWPG)
TOT 2B1
N-S
S-N
600
600
TOT 2B2
N-S
S-N
265
300
TOT 2C
N-S
400
S-N
580
N
SunZia Southwest Transmission Project
N
07-27-09
By e-mail this date the TSS Chair
distributed a letter indicating that the SunZia
Southwest Transmission Project has achieved Phase II
status and a planned rating of 3000 MW.
N
03-30-11
By e-mail this date the PCC Chair
distributed a letter indicating that the SunZia
Southwest Transmission Project has achieved Phase III
status with an Accepted Rating of 3000 MW.
S
11-26-13 Upon seeing a significant amount of email
traffic concerning some new studies and cases that are
being performed by email this day I received
the
following response:
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
2015
Revised 3/1/2012
Page 8
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
SunZia does have an Accepted Rating of 3000MW for two
500kV AC lines (approximately 500 miles in length)
that went through the full WECC Three Phase Rating
Process that concluded in early 2011. SunZia has also
been providing regular Annual Progress Reports to WECC
based on the permitting status and timing related to
the Project. The Final Environmental Impact Statement
(FEIS) was issued by the lead federal agency, the BLM,
in June 2013 and is in the process of finalizing the
Record of Decision in early 2014.
With the FEIS, a potential location for one of the
interconnections in NM to the existing Path 47
proposed by SunZia at the existing Luna 345kV
substation was somewhat problematic and would have
required several miles of additional transmission to
loop SunZia lines into the Luna substation. Due to
this, SunZia is proposing to relocate the Luna
interconnection
to
the
existing
Hidalgo
345kV
substation, located approximately 60 miles west of
Luna. It is important to note that the Phase 2 Report
for SunZia also included a sensitivity to interconnect
to the Hidalgo 345kV substation. The current activity
related to SunZia and organizing the SunZia PRG is
primarily to confirm the simultaneous interactions
with Path 47 for the intermediate interconnection of
SunZia to the existing Hidalgo 345kV substation. The
remainder of the SunZia interconnection facilities
remain unchanged (SunZia East, Willow and Pinal
Central).
An issue was also raised regarding the simultaneous
interaction with other WECC paths and SunZia, several
of which had been included as part of the Phase 2
CODES:
N
S
C
*
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
Revised 3/1/2012
Page 9
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
Study and accepted by WECC. As part of the FEIS for
SunZia, a corridor of up to 1000 feet is being
considered and an ultimate ROW for each circuit of 200
feet. A separation distance of 250 feet is achievable
for most, if not all of the 500 miles. The PRG will
also have a chance to discuss this issue and determine
if any additional technical work will need to be
conducted. Currently, the SunZia team has committed to
conducting the 10% Flow Test on a WECC 2018 base case
with the topology confirmed with the PRG members.
01-05-11
PacifiCorp
(PACE)
N
S
12-16-10
CODES:
N
S
C
*
PacifiCorp
(PACE)
Gateway West – Aeolus West, Bridger/Anticline West and
Path C Projects
02-06-09
By e-mail this date the TSS chair
distributed a letter indicating that the Gateway West
Transmission Project has achieved Phase II status for
planned rating increases of the following paths; TOT
4A, Bridger West, and Borah West to 3435 MW, 5200 MW,
and 5557 MW, respectively, and two new paths created
with this project; West of Aeolus (2050 MW) and
Midpoint West (5487 MW).
N
01-05-11
By e-mail this date the PCC Chair
distributed a letter indicating that the Gateway WestAeolus West (2670 MW east to west), Bridger/Anticline
West (4100 MW east to west) and Path C (2250 MW bidirectional north/south) Projects have achieved Phase
III status with the indicated Accepted Ratings.
N
Gateway South – Aeolus South Project
S
02-06-09
By e-mail this date the TSS chair
distributed a letter indicating that the Gateway South
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
?
?
Revised 3/1/2012
Page 10
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
Project has achieved Phase II status for a planned
rating of 3000 MW N-S on the South of Aeolus path,
2400 MW N-S and 790 MW S-N on the Mona South path, and
would increase the TOT 2C transfer capability from 300
MW to 2100 MW N-S and from 300 MW to 1700 MW S-N.
12-14-10
05-19-09
CODES:
N
S
C
*
PacifiCorp
(PACE)
PacifiCorp
(PACE)
N
12-16-10
By e-mail this date the PCC Chair
distributed a letter indicating that the Gateway
South-Aeolus South Project has achieved Phase III
status with an Accepted Rating of 1700 MW north to
south.
N
Gateway West – TOT 4A Project
S
02-06-09
By e-mail this date the TSS chair
distributed a letter indicating that the Gateway West
Transmission Project has achieved Phase II status for
planned rating increases of the following paths; TOT
4A, Bridger West, and Borah West to 3435 MW, 5200 MW,
and 5557 MW, respectively, and two new paths created
with this project; West of Aeolus (2050 MW) and
Midpoint West (5487 MW).
N
12-14-10
By e-mail this date the PCC Chair
distributed a letter indicating that the Gateway WestTOT 4A Project has achieved Phase III status with an
Accepted Rating of 2175 MW north to south.
N
TOT 4A/4B Transmission Path Rerate
N
07-30-10
By e-mail this date, PacifiCorp (PAC)
initiated the Expedited Project Rating Review Process
for the TOT 4A/4B Transmission Path Rerate.
System
upgrades outlined in the 05-19-09 log entry above have
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
?
?
Revised 3/1/2012
Page 11
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
been made that affect the definitions of both paths so
to obtain accepted ratings, this rerate project is
being taken through the Rating Review Process. Along
with the notification letter, PacifiCorp provided a
Comprehensive Progress Report for 60-day review along
with a request for interest in participating on the
Phase 2 Project Review Group.
12-30-05
S
10-11-10
By e-mail this date, the PCC Chair
distributed a letter granting Phase III status to the
TOT 4A/4B Transmission Path Rerate Project with
Accepted ratings of 937 MW for TOT 4A and 829 MW for
TOT 4B.
S
11-13-12 By email this date PacifiCorp distributed a
revised comprehensive progress report identifying some
changes to the plan of service.
S
11-26-12 By email this date WAPA submitted comments on
the revised report.
S
12-24-12 By email this date PacifiCorp distributed an
updated report.
SCE
N
CODES:
N
S
C
*
EOR 10500 MW Project with EOR 9300 MW upgrade and
Devers-Palo Verde No.2
12-30-05 By e-mail this date a Comprehensive Progress
Report was distributed for a rating of 10500 MW on the
combined projects of EOR 9300 MW upgrade and Devers-Palo
Verde No.2 with Path 49 EOR.
Phase 2 status is
requested once the 60 day comment period is completed.
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
2011
Revised 3/1/2012
Page 12
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
S
03-01-07 By e-mail this date the PCC Chair distributed
a letter confirming that Path 49 (East of Colorado
River) has achieved an accepted rating of 10,500 MW in
the east to west direction pending completion of the
identified upgrades.
S
12-22-11 By e-mail this date SCE indicated that since
this project achieved Phase III status, the proposed
DPV2 Project has been modified and the Plan of Service
accordingly updated. As a result, SCE plans to perform
additional studies to determine a revised DPV2 Accepted
Path 49 rating. In addition, the PRG for this project
is reconvened and interest in participation on it is
solicited.
9-9-13 By this e-mail this date SCE invited the PRG to
the DCR Path 49 (EOR) and Path 46 (WOR) Re-studies
Project Review Group Meeting #4. In cooperation with NV
Energy (NVE), this meeting will also include NVE's SNTI
Expedited Path Rating Study in the interest of reducing
your travel and time commitments. The meeting is
scheduled on September 27, 2013 between 9:00 am - 5:00
pm at NV Energy Beltway Complex in Las Vegas, Nevada.
S
CODES:
N
S
C
*
10-11-13 By email this date SCE distributed the final
reports for Path 46 and 49 restudy. SCE revised the DPV2
POS by replacing the Devers – San Bernardino 230 kV
lines # 1 and # 2 and Devers – Vista 230 kV lines # 1
and # 2 upgrades with a new Devers – Valley 500 kV # 2
line. For the DPV2 rating studies, the Devers – San
Bernardino 230 kV lines # 1 and # 2 and the Devers –
Vista 230 kV lines # 1 and # 2 would be represented as
originally constructed.
The SCE PRG determined that the change to the plan of
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
Revised 3/1/2012
Page 13
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
service did not require being moved back to phase 2 but
did require studies to verify that the transfer limit
for the path.
N
08-31-05
SCE
N
CODES:
N
S
C
*
11-21-13 By email this date the PCC chair distributed a
letter describing this project retaining phase 3 status.
The phase 3 rating is 9,600 MW for path 49 and 11,200 on
path 46.
Devers-Palo Verde No.2 Project (DPV2)/Path 46 Rating
08-31-05 By letter this date SCE distributed the
Devers-Palo Verde No. 2 Project (DPV2)/Path 46 Rating
Comprehensive Progress Report and requested the project
be given Phase 2 status.
The letter also requested
interest in forming a Project Review Group.
S
05-17-06 By letter this date the PCC Chair confirmed
that Path 46 (West-of-Colorado River) has achieved an
Accepted Rating of 11,823 MW in the east to west
direction as described in the report and is granted
Phase 3, subject to completion of the identified
upgrades.
S
12-21-11 By e-mail this date SCE indicated that since
this project achieved Phase III status, the proposed
DPV2 Project has been modified and the Plan of Service
accordingly updated. As a result, SCE plans to
perform additional studies to determine a revised DPV2
Accepted Path 46 rating. In addition, the PRG for
this project is reconvened and interest in
participation on it is solicited.
S
12-21-11 By e-mail this date Clean Line Energy
requested to participate on the PRG for this project.
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
Summer 2011
Revised 3/1/2012
Page 14
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
10-12-03
MEMBER
SYSTEM
CODE
SCE
N
04-07-03
N
S
C
*
Devers-Palo Verde No.2 Project (DPV2)/Path 49 Rating
10-10-03 By e-mail this date SCE distributed a letter
indicating that they are in the process of finalizing
the Plan of Service for the East of the River Path
through the construction of the DPV2 Project and
solicited interest in participation in a Regional
Planning Review Group.
S
07-27-05 By letter this date SCE distributed the
Devers-Palo Verde No. 2 Project Report. SCE requested
Phase 3 status and an accepted rating of 9,255 MW.
S
08-30-05 By e-mail this date, the PCC Chair issued a
letter indicating that the Devers-Palo Verde No. 2 /
Path 49 (East of the Colorado River) achieved Phase 3
status and an accepted rating of 9,255 MW as described
in the report.
S
12-19-05 By e-mail this date the CISO announced a
conference call on 12-22-05 to approve the DPVII
Extreme Contingencies Study report.
S
04-20-06 By e-mail this date the CISO distributed the
results of the discussion at the Mead-Phoenix E&O
about coordinated operation of the Perkins PST and
DPV2 SPS.
Summer 2011
Path 49 Upgrade
SDGE
N
CODES:
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
2010
04-07-03 By e-mail this date, San Diego Gas and
Electric (SDGE) distributed a letter dated March 28,
2003 announcing a project to upgrade the rating of Path
49 (EOR) from 7550 MW to 8310 MW. SDGE also
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
Revised 3/1/2012
Page 15
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
distributed a Comprehensive Progress Report for the
project and solicited interest in participation in a
review group. SDGE requested the expedited process for
this upgrade.
S
CODES:
N
S
C
*
01-18-05 By e-mail this date the PCC Chair issued a
letter indicating that the Path 49 Upgrade Project has
achieved Phase III status and an accepted Path 49
Rating of 8055 MW.
S
02-28-06 By letter this date IID informed TSS of a
temporary change in plan of service for Path 49 Short
Term Upgrades.
The installation of the phase shifter
between IID and SDGE is delay until Dec. 2007. Rather
than delay the increase in rating, IID is developing a
SPS to protect the El Centro transformer under N-1
conditions.
S
06-02-06 By two e-mails this date the CISO sent a
Final Draft Report to the review group and asked for
comments by July 3, 2006.
S
06-28-06 By two e-mails this date the CISO distributed
the
WOR
Short-Term
Upgrades
Final
Report
with
Appendices.
Also, Gary DeShazo was thanked for the
WOR Short Term Upgrades presentation give at the
WECC/WATS meeting.
S
07-10-06 By two e-mails this date the CISO WECC/WATS
Peer Review Group DVP2 Path 49 and Path 46 Final Study
Reports to WECC.
S
01-18-07 By e-mail this date the TSS Chair indicated
that the Path 49 (EOR) Upgrade Project is complete and
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
Revised 3/1/2012
Page 16
LOG OF PROJECTS UNDERGOING WECC's THREE-PHASE RATING PROCESS
PHASE 3 PROJECTS
DATE
NOTIFICATION
RECEIVED
MEMBER
SYSTEM
CODE
REPORTED
*********************** COMMENTS *********************** DATE EFFECTIVE
in-service.
C
CODES:
N
S
C
*
03-01-2012 – By an email to WECC Staff dated September
2, 2010 it was indicated the project as stated was not
yet completed. The following is excerpts from that
email: 1) IID decided to not install the SPS and
protect the overload of the Dixieland –RTP1 92 KV with
its
Overcurrent
Protection
and
not
make
the
Overcurrent Protection conditional to the status of
the Devers-Palo Verde line. 2) IID-approved
plan
of
replacing Avenue 58 161/92 kV transformer with a 225
MVA rating in 2010. The transformer is schedule to be
in-service by the end of March of 2011.
New Project or Facility Rating
Study results for previously reported items or answers to questions.
Comments, questions, or objections to previously reported items.
New entry to the log.
Revised 3/1/2012
Page 17